OSRS DPS Calculator
Estimate damage per second and time-to-kill from your max hit, accuracy rolls, and attack speed. Built for quick PvM comparisons — not a full combat sim.
Get max hit from the Max Hit Calculator · Combat Level · GE Tracker
Enter your final max hit, then tune accuracy with level, gear bonus, and attack prayer. Need max hit first? Open Max Hit Calculator
Style-specific defence when known
From the equipment stats screen
Final max hit (prayers & gear included)
1.0 = normal hits. e.g. 1.5 ≈ DWH every hit (upper bound)
TTK ≈ 1m 50s at 750 HP
- Hit chance
- 72.9%
- Avg hit
- 16.4
- Max hit used
- 45
- Attacks/sec
- 0.42
- Attack roll / defence roll
- 26,316 / 14,272
Defence roll assumes defence level +9 with no defence bonus or prayers on the target. Bosses with high style defence will hit harder than this estimate suggests.
How DPS is calculated
Hit chance uses the standard OSRS attack roll vs defence roll. Average damage per successful hit is treated as half your max hit (uniform 0–max). Attacks per second = 1 ÷ (ticks × 0.6). DPS = average hit × hit chance × attacks/sec.
FAQ
- Should max hit include prayers?
- Yes — enter the max hit you actually deal. Attack prayers here only affect accuracy.
- Why isn’t this matching a kill timer?
- Bosses change defence, prayer, and phases. This tool models a constant target with no downtime.
- What about special attacks?
- Use the optional “spec every hit” multiplier for a rough upper bound, or leave it at 1.0 for normal attacks.